1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef EXTENSIONS_RENDERER_EVENT_BINDINGS_H_ 6 #define EXTENSIONS_RENDERER_EVENT_BINDINGS_H_ 7 8 #include "extensions/renderer/object_backed_native_handler.h" 9 #include "v8/include/v8.h" 10 11 namespace base { 12 class DictionaryValue; 13 } 14 15 namespace extensions { 16 class Dispatcher; 17 class EventFilter; 18 class EventFilteringInfo; 19 class EventMatcher; 20 21 // This class deals with the javascript bindings related to Event objects. 22 class EventBindings : public ObjectBackedNativeHandler { 23 public: 24 EventBindings(Dispatcher* dispatcher, ScriptContext* context); 25 virtual ~EventBindings(); 26 27 private: 28 // Attach an event name to an object. 29 // |event_name| The name of the event to attach. 30 void AttachEvent(const v8::FunctionCallbackInfo<v8::Value>& args); 31 32 // Detach an event name from an object. 33 // |event_name| The name of the event to stop listening to. 34 // |is_manual| True if this detach was done by the user via removeListener() 35 // as opposed to automatically during shutdown, in which case we should inform 36 // the browser we are no longer interested in that event. 37 void DetachEvent(const v8::FunctionCallbackInfo<v8::Value>& args); 38 39 // MatcherID AttachFilteredEvent(string event_name, object filter) 40 // |event_name| Name of the event to attach. 41 // |filter| Which instances of the named event are we interested in. 42 // returns the id assigned to the listener, which will be returned from calls 43 // to MatchAgainstEventFilter where this listener matches. 44 void AttachFilteredEvent(const v8::FunctionCallbackInfo<v8::Value>& args); 45 46 // void DetachFilteredEvent(int id, bool manual) 47 // id - Id of the event to detach. 48 // manual - false if this is part of the extension unload process where all 49 // listeners are automatically detached. 50 void DetachFilteredEvent(const v8::FunctionCallbackInfo<v8::Value>& args); 51 52 void MatchAgainstEventFilter(const v8::FunctionCallbackInfo<v8::Value>& args); 53 54 Dispatcher* dispatcher_; 55 scoped_ptr<EventMatcher> ParseEventMatcher( 56 base::DictionaryValue* filter_dict); 57 }; 58 59 } // namespace extensions 60 61 #endif // EXTENSIONS_RENDERER_EVENT_BINDINGS_H_ 62